2 Which change of phase is exothermic? (A) H2O(s) → H2O(g)
(B) CO2(s) + CO2(2)
(C) H2S(g) → H2S(1)
(D) NH3(8) ► NH3(g)

During chemistry class, carl performed several lab tests on two white solids. the results of three tests are seen in the data table. based on this data, carl has concluded that substance b must have bonds.

Identify and describe the three ways that mutations affect organisms.

What is the mass of 8 moles of sodium atoms